A Mif2Go content model is a configuration-style representation of a DTD. A content-model configuration summarizes DTD information in a form Mif2Go can use to produce XML output that conforms to the DTD. Mif2Go provides built-in content models for basic DITA version 1.0 and 1.1 topic types, and for DocBook version 4.5. You do not have to include anything special in your Mif2Go conversion project to use these content models.
http://docs.oasis-open.org/dita/v1.0.1/dtd/ for DITA version 1.0
http://docs.oasis-open.org/dita/v1.1/CS01/dtd/ for DITA version 1.1
http://www.oasis-open.org/docbook/xml/4.5/ for DocBook 4.5.
These content models are complete. You should not need to modify any of them, except possibly to correct element type assignments; see §30.6 . Each built-in content model has a matching configuration file.
You can use utility program dtd2ini to abstract content models from other DTDs; see §30.2.2 .
> 30 Working with content models > 30.1 Understanding Mif2Go content models